19h00: Thomas Neidhart will talk about ProGuard/DexGuard tricks.
19h45: Christophe Beyls will tell you tricks to reduce the APK file size.
20h15: Yannick Lemin will talk about the new ConstraintLayout announced at Google I/O 2016
21h00: Discussions and Codelabs ... and maybe you guys can share your tips on using systrace / hierarchy viewer tools and everything about dev optimisation.
22h: the end :)